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Ch1 will not turn off.


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I have 48 channels. Channel #1 on Board #1 will not do anything except stay on. Even when the command is to turn off, it will dim 50%. I have double checked the sequences and they are ok. Any suggestions why this channel is not fully responding????

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There are a few things that can cause this. Try powering the unit off and then back on.

Contanimation on the card/condensation is triggerning the triac.

The triac or the opto on that channel is marginal. What type of cards are they?

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Dan:

I power the boards off each night. I have the 16 channel with heatsinks (hobbyist)

I there something that I need to be looking for on the board or something that needs dried out? I have my boards in rite time boxes and never have seen moisture or rain in them.

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